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BSC2085 - Quiz 7

Anatomy - Maser

Skull cranial, facial and skull bones
Cranial bones cranium; attachment of head muscles; protect brain
Facial bones sense organ cavities; openings for air/food; insert teeth; anchor facial muscles
Number of Teeth 32 full set
Skull bones mostly flat, thin with curvature; sutured with interlocking joints
Cranial cavity brain
Paranasal sinuses bones with air filled areas
Foramina/Canals/Fissures openings for spinal cord, blood vessels, nerves
Frontal bone superior walls of orbits
Frontal squama forehead
Glabella smooth frontal bone between orbits
Frontal sinuses lateral to glabella
Parietal bones stop at ear; superior and lateral skull
Cranial Articulation Sutures coronal, sagittal, lambdoidal, squamosal
Coronal articulation suture parietals - frontal (anterior)
Sagittal articulation suture parietal - parietal (midline)
Lambdoidal articulation suture parietals - occipital (posterior)
Squamosal articulation suture parietal - temporal (lateral)
Occipital bone posterior wall & base of skull; supports cerebellum; foramen magnum in base; connects medulla oblongata to spinal cord; two occipital condyles are articulation point with atlas (c1)
Occipital condyles articulation point with atlas
Temporal Bones inferior to parietals
Zygomatic process bar-like extension meets with zygomatic & mandible; within the temporal bones
Tympanic region external ear canal = auditory meatus; within temporal bone
Auditory meatus ear canal; within temporal bone
Jugular foramen for jugular vein; within temporal bone
Carotid canal for carotid artery; within temporal bone
Sphenoid bone cranial keystone - articulates with all cranials
Sella turcica encloses pituitary gland; within the sphenoid bone
Optic foramina passage for optic nerves & arteries; within the sphenoid bone
Ethmoid bone between nasal cavity and orbit
Olfactory foramina for olfactory nerves
Mandible lower jaw - anchors teeth; the body - chin
Mandibular symphysis midline depression; fuse 2 mandibular bones in infancy
Maxillary bones = Maxillae upper jaw; articulates with all face bones except mandible; part of hard palate
Hard palate bony foof of mouth
Zygomatic Bone cheek bones; inferior part of orbits
Nasal bones fused from bridge of nose, attach to cartilage of external nose
Lacrimal bones medial wall of orbits
Lacrimal fossa passage for tears to drain into nasal cavity
Palatine bone complete posterior of hard palate
Vomer part of nasal septum
Anterior Longitudinal Ligament attaches to bony vertebrae & discs
Posterior Longitudinal Ligament attaches only to discs (weaker)
Vertebral Ligaments support vertebral column
Intervertebral Discs cushion pads with semi-fluid pulposus; strong outer ring of fibrocartilage
Herniated discs slipped disc
Cervical curvature concave
Thoracic curvature convex
Lumbar curvature concave
Sacral curvature convex
Scoliosis lateral curvature of thoracic region
Kyphosis hunchback; exaggerated convex thoracic
Lordosis swayback; accentuated concave lumbar
Anterior centrum weight-bearing body of vertebrae
Intervertabral foramina openings between vertebrae; passage of spinal nerves leaving spinal cord
Cervical Vertebrae C1 - C7
Atlas C1; no vertebral disc between atlas/axis; no body; articulates with chondyles of skull
Atlas movement for pivoting head movement (nod "yes")
Axis C2; does have a body
Odontoid process to rotate atlas
Axis movement for side to side movement (say "no")
Thoracic Vertebrae T1 - T2; articulate with ribs; increase in size
Lumbar Vertebrae L1 - L5; small of back; receive the most stress; sturdier and more massive structures
Sacrum S1-S5; posterior wall of pelvis;lateral articulation with 2 hip bones; 5 fused bones in adulthood
Sacroiliac joints articulation of sacrum and hip bones
Sacral Foramina opening for blood vessels & nerves
Coccyx vestigial, nearly useless tail bones; 4 fused bones (sometimes 3 or 5)
Bony Thorax protective cage of vertebrae/ribs/sternum/costal cartilage
Sternum breast bone; fusion of 3 bones
Manubrium superior part of sternum; articulates with clavicles and first pair of ribs
Sternum body large middle part; articulates with cartilage of rib 2-7
Xiphoid process inferior part of sternum; attachment site for diaphragm & abdominal muscles
True ribs vertebrosternal ribs (1-7); attach direct to sternum by costal cartilage
False ribs ribs 8-12
Vertechondral ribs pairs 8-10; attach to ribs above (not to sternum); attach cartilage to cartilage
Vertebral ribs floating ribs (11-12); no anterior attachment; costal cartilage embedded into muscle
Created by: NknmJewel